Corpus for keyctl$unlink:

Coverage	Program
701	perf_event_open-add_key$keyring-add_key$keyring-keyctl$unlink
512	add_key$keyring-keyctl$unlink
365	add_key$keyring-keyctl$invalidate-keyctl$unlink
194	add_key$keyring-add_key$keyring-add_key$fscrypt_v1-add_key$fscrypt_v1-keyctl$unlink
28	keyctl$unlink
22	keyctl$unlink